Modern Railway Systems

Modern Railway Systems is committed to provide each of our customers with the most innovative, cost-effective and safest systems available. Our commitment is to implement these systems in such a manner as to minimize impacts to existing operations and to strive to have our team members function as an integrated team with our customers, their representatives and other contractors involved in our projects.

Our team of seasoned experts is capable of providing a wide range of services to customers in the rail transportation industry. Our primary focus is the train control disciplines, but our capabilities extend to the communications, power distribution and rail operations disciplines as well.

FrontRunner South Grand Opening

Modern Railway Systems is pleased to congratulate Utah Transit Authority and Commuter Rail Constructors, the prime contractor, on the grand opening of the FrontRunner South commuter rail extension. On December 6, 2012, UTA operated the inaugural train from Salt Lake City to Provo, and began regular revenue service on this 44 mile extension on December 10. UTA started FrontRunner rail operations from Salt Lake City north to Pleasant View in 2008, and this recent southern extension doubles the FrontRunner system to a total length of 89 miles. The line now operates through four counties, and serves the region with stops at 16 passenger stations.

Read More


Stacy and Witbeck, Inc. establishes new subsidiary, acquires Rail Systems Solutions

Alameda, CA - December 8, 2011 - Stacy and Witbeck, Inc. (SWI), one of the largest and most respected rail transit contractors in the country, has established a new operating subsidiary, Modern Railway Systems (MRS), to address a wide variety of systems requirements related to the rail transit industry. On November 30, 2011, SWI acquired Rail Systems Solutions, Inc. (RSS) of Denver, Colorado and merged RSS operations with MRS. Effective immediately, MRS has assumed all existing RSS operations through its headquarters in Denver.

Read More

MRS Awarded Sugar House Streetcar Project

Rocky Mountain Systems Services (RMSS), an MRS and MJG joint venture, are part of the award-winning team selected early this year by the Utah Transit Authority and CM/GC Stacy and Witbeck, Inc., for this project. The RMSS team will design, furnish, install, and test the Signal, Communication, and Overhead Catenary Systems, valued at $8M.

Read More


MRS Joins the SMART Team

Sonoma-Marin Area Rail Transit (SMART) is a new start passenger train rail system located in San Francisco's North Bay. The length of the initial operating segment is 38 miles and will run from downtown San Rafael to just north of Santa Rosa.

Read More


Sound Transit Awards U830 Project

Sound Transit (ST) awarded MMJV [a Modern Railway Systems (MRS) and Mass. Electric Construction Company (MEC) Joint Venture], the Signal System Design and Installation of the U830 Project.

Read More


MRS is capable of delivering turnkey projects from conceptual design through to the maintenance of installed systems. We also have the ability to provide management and supervision of forces supplied by others, depending on the requirements of the owner, project and local union requirements. Key services include:

  • Turnkey construction, including design furnish install and maintain responsibilities
  • Project management
  • Project supervision/superintendence
  • Scheduling and cost control
  • Test planning and management
  • Utility coordination and relocation
  • Safety Certification
  • Maintenance
  • Tie in to existing systems (design/install/test)
  • Systems integration and integration testing
  • FRA and PUC mandated routine maintenance and inspection.

Read More